LG WM3570H A Series Service Manual page 28

PRESSURE SENSOR ERROR
Is displayed?
PE ERROR
Yes
Is the connector connected
to pressure sensor
disconnected or
disassembled?
No
Is the resistance of the
pressure sensor out of
range?
(pin 1~ pin 3)
(21~23 Ω ±10%)
No
Is the AIR CHAMBER and
the tube clogged?
No
Replace the MAIN PWB
assembly.
Reconnect or
repair
Yes
the connector.
Replace the
Yes
pressure
switch.
Fix the air
chamber
Yes
and remove
the foreign
material.
28